ISA Server 2004 provides an easy way to quickly set up a firewall in a Windows environment, but it’s far from perfect. In this article, Tom Shinder points out some of the improvements that are coming in ISA Server 2006 in this "first look" article on the next version of the ISA firewall, ISA Server 2006.
Check it out at: http://techrepublic.com.com/5100-6350-6044785.html
Thomas W Shinder, M.D.
MVP -- ISA Firewalls